Trawick-Smith, J. (2010). From playpen to playground: The importance of physical play for the motor development of young children. Reston, VA: Head Start Body Start National Center for Physical Development and Outdoor Play.

Miller, E., & Almon, J. (2009). Crisis in the kindergarten: Why children need to play in school. College Park, MD: Alliance for Childhood; Nabuco, M., & Sylva, K. (1996). The effects of three early childhood curricula in Portugal on children’s progress in first year primary school. London, UK: Institute of Education, University of London.

Berk, L., & Winsler, A. (1995). Scaffolding children’s learning: Vygotsky and early childhood education. Washington, DC: National Association for the Education of the Young Child.

Penn, H. (2010). Quality in early childhood services: An international perspective. London, UK: Open University Press

Corter, C. (in press). Government roles in early childhood education and care in Canada: Patchwork, perils and promise of new directions. In N. Howe and L. Prochner (Eds.),New directions in early childhood education and care in Canada. Toronto, ON: University of Toronto.